15 2D code object
15.2 Structure of a QR Code
A QR Code consists of the following basic code elements: a quiet zone, a finder pattern, a
timing pattern, an alignment pattern and the data area.
The structure of a QR Code and Micro QR Code is depicted in the following illustration:
(2)
(1)
(3)
(3)
(3)
(4)
(5)
(4)
QR Code
Micro QR Code
(1)
Quiet zone
(2)
Finder pattern
(3)
Timing pattern
(4)
Data area
(5)
Alignment pattern
Remarks
• For QR Code, the minimum quiet zone on all sides is four modules.
Micro QR Code requires a quiet zone on all sides that is at least two modules wide.
iQR Code requires a quiet zone on all sides that is at least one module wide.
• The finder patterns are placed in the top left, top right, and bottom left corners of the QR
Code. Micro QR Code has one finder pattern.
• The data area consists of square dark (black) and light (white) data modules.
• The alignment pattern is applied to QR Code Model 2.
Related topics
Create a 2D code object (page 167)
QR Code Model 1 versions and data capacity (page 159)
QR Code Model 2 versions and data capacity (page 162)
Micro QR Code versions and data capacity (page 165)
158 ME-NAVIS2-OP-1
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